Paving roller



Dec, 2, 1924. v 1517501 F. E. GREENE PAVING ROLLER Filed g- 30. 1 2 Shuts-Sheet. l

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BY jig ATTORNEYS,

Patented Dec. 2, 1924.

imirsn FRED E. GREENE, 0F OAKLAND, CALIFORNIA.

T 0 all whom it may concern:

Be it known that I, FRED E. GREENE, a citizen of the United States, residing at Oakland, county of Alameda, and State of California, have invented new and useful Improvements in Paving Rollers, of which the following is a specification.

This invention relates to power-operated paving rollers, commonly known as steam rollers, and has for its object to heat the rollers to a temperature where it will be practicable to operate them over freshly laid paving.

Where cold rollers are used it is not feasible to operate them over newly laid paving, since the fresh material has a tendency to adhere to the cold rollers. I find that if the paving material be rolled immediately after being laid and while it is still fresh, a much better pavement is produced in that the material becomes more compact and objectionable voids are eliminated.

One form which my invention may assume is exemplified in the following description and illustrated in the accompanying drawings, in which i Fig. 1 shows a side elevation of a steam roller embodying my invention.

Fig. 2 shows a longitudinal central sectional view through one of the rollers.

Fig. 3 shows a fragmentary view in section of the oiling device for a pad.

Referring more in detail to the accompanying drawings, I show a type of machine comprising a frame 10 mounted at each end upon a roller 11 and carrying a boiler 12 and a steam engine 13. One of the rollers is journaled directly on the main frame and is driven fromthe engine by suitable gearing 14. The other roller is journaled in a fork 15, the fork being swiveled to the main frame so that the roller serves as a steering roller. An operators seat is positioned over the steering roller and suitable controlling means are arranged adjacent the operators seat.

Each roller consists of a circumferential shell 17 supported at each end by spokes 18, the latter being formed with hubs 19. The hubs are journaled on an axle 20, which is PAVING- ROLLER.

Application filed August 30, 1922. Serial No. 585,250.

fixed to the main frame in the case of the driving roller, and to the fork 15 in the case of the steering roller. On the interior of each roller the axle is bent downwardly in the form of a yoke, as shown at 21, and upon this yoke is carried a fire-box 22 lined with fire brick 23 and open at its top. One end of each axle is hollowed out to receive a pipe 2a, which terminates in an oil burner 25 on the exterior of the fire-box. Each pipe at its outer end is connected to the boiler by means of a steam pipe 25 and to an oil supply tank 26 by means of pipes 27. Thus steam and oil are introduced to the burner for the purpose of supplying heat to the interior of the roller.

To assist in keeping the surface of each roller polished I may provide an automatic oiling arrangement consisting preferably of a pad or wiper 28 fixed upon the end of a lever 29 which is fulcrumed on a bracket 30. The other end of the lever connects with a link 31, which in turn is connected to a pedal or operating lever 32 adjacent the drivers seat whereby the pads may be moved to and from the surface of the rollers; The pads are supplied with oil in any suitable way. In the present instance oil is fed to them through a conduit 33 formed in the lever 29 and bracket 30.

The combined effect of heating and oiling the rollers will insure a clean and polished roller under any and all conditions of operation and enable the user to move the roller on to fresh paving material immediately following the laying of the same. Thereby the compacting of the paving material can be better accomplished and the usual voids therein eliminated.

Various changes in the construction and arrangement of the several parts herein shown and described may be employed without departing from the spirit of my invention as disclosed in the appended claims.

Having thus described my invention, what I claim and desire to secure by Letters Patent is z- 1. A paving roller comprising a frame, an

x1e fixed thereon, a roller journaled on the axle, said axle having a bent portion disposed Within the roller, a firebox carried on one portion of the axle, an oil burner Within the fire-box and connections for the oil burner leading through one end of the axle.

2. A paving roller comprising a ciroum ferential shell, spokes at each end thereof formed of a hub, an axle extending through the roller and forming a longitudinal support for the hubs, said axle being bent downwardly Within the roller, 21 fire-box on the bent portion of the axle open at its top, a burner extending within the fire-box and supply connections for the burner extending through one end of the axle.

FRED. E. GREENE. 

